Hashing MCQ Questions And Answers

This section focuses on "Hashing" in Blockchain. These Multiple Choice Questions (MCQ) should be practiced to improve the Blockchain skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. A hash function takes an input string with?

A. numbers
B. alphabets
C. media files
D. All of the above

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2. The fixed-length output is called a ?

A. hash
B. bitcoin
C. data
D. value

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3. A Bitcoin blockchain uses?

A. RSA
B. SHA-128
C. SHA-256
D. All of the above

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4. In 2001, SHA-256 Hashing algorithm was developed by the ?

A. DFA
B. CSA
C. ZSA
D. NSA

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5. Message authentication code is also known as

A. key code
B. hash code
C. keyed hash function
D. message key hash function

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6. What is a one-way password file?

A. A scheme in which the password is jumbled and stored
B. A scheme in which the hash of the password is stored
C. A scheme in which the password is XOR with a key and stored
D. A scheme in which the password is passed through a PRF, which is then stored

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7. A larger hash code cannot be decomposed into independent subcodes.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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8. If the compression function is collision resistant, then so is the resultant iterated hash function.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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9. Which one of the following is not an application hash functions?

A. One-way password file
B. Virus Detection
C. Intrusion detection
D. Key wrapping

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10. When a hash function is used to provide message authentication, the hash function value is referred to as

A. Message Field
B. Message Score
C. Message Digest
D. Message Leap

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